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(No Model.) 3 Sheets--Sheet 1.

G. BURNER. SURFACE CONDENSER.

No. 448,521. Patented Mar. 17, 1891 (No Model.) 3 Sheets8heet 2.

G. HORNER. SURFACE CONDENSER.

No. 448,521. I Patented Mar. 17, 1891.

minonms PETERS cm, Pam-6mm wnsmnoron, n. c

(No Model.) 3 Sheets-Sheet 3'. G HORNER SURFACE CONDENSER.

. Patented Mar. 17, 1891..

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linrrnn STATES PATENT Onrron.

GUSTAV HoRNER, OF LUBEN, GERMANY.

SURFACE CONDENSER.

iFsPIEGIFIOATION forming part of Letters Patent No.448,521, dated March 17, 1891..

Application filed July 28, 1890.

.To all whom it may concern.-

- Be it known that I, GUSTAV I-I'CiRNER, manufacturer, of Liiben,in the Kingdom of Prussia and German Empire, have invented new and useful Improvements in Surface Condensers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in surface condensers which differ from similar apparatus hitherto known by being constructed of several parts which allow of easy construction and enlargement or reduction of the apparatus.

This apparatus has the further advantage that by means of a pump the Water resulting from the condensed steam is again introduced as feed-water through the surface condenser and there heated, while at the same time it serves for cooling.

This apparatus may be made rectangular or cylindrical, both modifications being illustrated in the accompanying drawings.

Figures I to III show the rectangular shape of my apparatus, Fig. I being a longitudinal section and Figs. II II II" planes of the parts forming one set for the construction of the condenser. Fig. III is a vertical section in the direction of the line Y Y, Fig. I. Figs. IV and V show the cylindrical shape of my apparatus. Fig. IV shows the same, partly in elevation and partly in vertical section.

Fig. V is partly a plan and partly a horizon- .tal section.

The apparatus, Figs. I to III, consists of separate parts a a a which are put together in a certain consecutive order so as to form three zigzag channels. One of these channels scrvesfor the passage and cooling of the steam to be condensed, the second channel leads the water resulting from the condensation of the steam through the apparatus, as feedwvater, for the purpose of reheating, and the third channel serves for the passage of the cooling means. The parts a a a are exactly alike as regards their exterior, and differ only with respect to their interior channel arrangements. The parts shown in Figs.

' I, II, and III are rectangular boxes and have on their top a groove 0 to receive a joint-ring b,

Serial No. 360,134. (No model.)

of lead or other suitable material. In thefour corners of these boxes are four orifices D E F G, which form corresponding vertical channels when the various boxes are placed together. These channels D E F G are separated wholly or partially from the other parts of tlie box by means of channels 0 and joints 1). In the longitudinal axis of these boxes are orifices A A situated vertically. The interior space of the parts 00 a a contains vertical ribs e, limited by the perforated transverse walls cl d, so that the interior of the boxes consists of a number of small divisions f. For the better distribution of the steam or liquid circulating through the condenser the various parts are supplied in the direction of the longitudinal axis and on the inner walls with wedge-shaped passages g g, which suitably direct the current entering or leaving the divisions f.

In the box a, Fig. II, the channel A is closed below by the bottom of the section above and open on the top. The channel A is open at top and bottom. The channels D E F G reach vertically through these boxes at. The part a belowit forms a box, the vertical channels D andE of which communicate with the interior divisionsf, while the channels A and A are separated from the interior divisions f, and therefore form only passages. In the box a the channels F and G communicate with the interior division f, while the channels A and A. are separated from f and open at bottom and top. (See Fig. 11".) These boxes a a a have a fiat bottom studded all round with ribs 7t, which fit into the groove 0, in which they make 'a tight joint between the different boxes. The boxes are put together in such a succession that on the box at is placed the box a on which is again placed the box a, on which follows the box a which succession can be repeated as often as de" sired. The lowest box a is supplied with supports. Z, by means of which it is secured to the flooring. The uppermost box a, completing the whole apparatus, carries a cover m, which is supplied in the direction of the channel A with a feed-pipe q for the steam to be condensed, and in the direction D F with two exit-pipes t t for the exit of the heated feed-water and also for the exit of the cooling means circulating through the apparatus. The lower box a is supplied with three exitpipes p pp the middle one of which 1) is situated below the channel A and serves for the exit of the condensed steam, while the pipe 1) communicates with the channel D for the introduction of the feed-water, and the pipe p communicates with the vertical channel F for theintroduction of the cooling means. On the pipe 1) is further situated an overflow-pipe 1", of glass or other material, which ends in a water-vessel s. This overflow-pipe by its water-lever indicates the proper working of the pump and controls the operation of the condenser.

The apparatus shown in Figs. I to III acts as follows: The steam to be condensed enters by the pipe q on the cover on into the top box a through the channel A, circulates then through the orifices in the transverse walls (Z (l into the divisions f, then downward through the channel A in the following lower box a, and so on in the direction of the arrow I through the whole condenser. From the lower box a the condensed steam is led by the center pipe 1) to the feed-pump and is raised as feed-water through the pipe 1) in the channel I). The latter channel leads the feed-water in the direction of the arm I into the lowest of the boxes c from there through the vertical channel E in the same direction, then into the following higher box from there through the vertical channel I) into the following box a the, from Where the feed-water is led as heated fluid through the pipe t again into the boiler. In order to dispose of the heat of the condenser not taken up by the feed-water, a cooling means (water, air, the.) enters through the pipe 1) and the vertical channels F Ginto the box (6 and escapes through the pipe t on the cover m of the apparatus in a state of high temperature. The boiler feed-pump works continuously, and when there are sufficient condensing-surfaces a vacuum is produced, by means of which the water in the watervessel .9 is sucked in. At the accidental stoppage of the feed or cooling water pump the water sucked up in the overflow-pipe or water-gage 2' will immediately run back into the vessel 8 and allow the uncondensed steam to escape, which will immediately induce the attendant to restart the pump.

Figs. IV and V show an a 'iparatus with cylindrical boxes, in which the zigzag channels shown in Figs. I to III are dispensed with, and circular channels areused for the pets sage of the steam, the feed-water, and cooling means. These circular channels are formed by the walls of the various boxes, which are concentric. A screw to, reaching through all the various parts, and a screw arranged on the cireun'iferenee of the apparatus and reaching through lugs on the lowest box and the cover m, connect the various parts securely. The various parts (0 in this modification are alike. The steam to be condensed enters from the pipe in the cover he, passes downward in the vertical channel A where it is condensed, and then reaches through the pipe 17 to the feeding-pump. From there this water is led as feed-water from the pipe 1) into the interior space B and heated by the surrounding steam-chamber formed by the channel A The feed-water leaves the apparatus through the pipe and is led to the boiler. The entrance of the cooling water or air is effected through pipe 1) and passes upward through the outer circular channel 0, leading at a high temperature through the pipe 15'. For the better distribution of the fluid circulating through the apparatus the several chambers A 13 C are supplied with radial ribs, which effect such better distribution and enlarge the cooling-surfaces. The lower of the circular plates (0* is closed in the channel B C by a sieve :0, which secures perfect distribution of the fluids circulating through this division.

The operation of the modified apparatus shown in Figs. IV and V is the same as of that shown at Figs. I to III.

What I claim, and desire to secure by Letters Patent of the United States, is-

1. A condenser consisting of number of sections havin independent passages through them for steam, a cooling medium, and the return of the water of condensation, respectively, substantially as set forth.

2. A condenser having passages for the steam and a cooling medium and an independent passage for leading the water of con densation back through the comlenser,whereby such water will condense the steam and become heated for admission to the boiler, substantially as set forth.

3. In a condenser, the combination of a number of sections having passages for steam and a cooling medium and an independent passage for the return of the water of condensation, and a pump connected to the steam-passage and to the said return-water passage, substantially as set forth.

4. A condenser having independent passages for steam, a cooling medium, and the return of the water of condensation, in combination with a water-gage connected to the lower end of the steam-passage, and a pump for drawing off the water of condensation and forcing it into the said return-water passage, substantially as set forth.

5. In a condenser, the combination of the boxes or sections a, a a having the chambers A A D E F G, and being provided with the ribs 6, the sections a being arranged alternately with the sections a a and having communication with each other alternately at opposite ends through the chambers A A, and the sections a (t being similarly connected by the chambers D E and F G, respectcooling means, respectively, substantially as ively, substantially as set forth. described. To 6. A surface condenser consisting of sepa- In Witness whereof I have hereunto set my rate rectangular boxes a a a containing hand in presence of two Witnesses vertical chambers A A D E F G and sup- GUSTAV I-IORNER.

plied in the interior with ribs 6, through Witnesses:

which circulate the steam, the feed-water re- H. J. DUNLAP,

sulting from the condensed steam, and the NELLIE B. DUNLAP. 

